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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Rocuronium Bromide Impurity 37、38、39
- CAS:
- MF:
- Chemical Name:Ritonavir EP Impurity HIJ
- CAS:
- MF:
- Chemical Name:Crisaborole Impurity 42
- CAS:
- MF:
- Structure:
- Chemical Name:TRANS-4-AMINOCROTONIC ACID
- CAS:38090-53-8
- MF:C4H7NO2
- Structure:
- Chemical Name:PeraMpanel
- CAS:380919-34-6
- MF:C23H17N3O2
- Chemical Name:Empagliflozin Impurity 83
- CAS:
- MF:
- Structure:
- Chemical Name:Ambroxol Imp.O
- CAS:1807328-39-7
- MF:C13H12Br2N2O
- Structure:
- Chemical Name:Olopatadine Impurity 10 HBr
- CAS:4174-83-8
- MF:C22H26Br2NP
- Chemical Name:Iohexol Impurity Q
- CAS:
- MF:
- Chemical Name:Avibactam sodium Impurity CIS
- CAS:
- MF:
- Structure:
- Chemical Name:Diphenidol Impurity 2
- CAS:63645-18-1
- MF:C16H17ClO
- Structure:
- Chemical Name:(2,5-dibromophenyl)(4-ethoxyphenyl)methanone
- CAS:1713015-63-4
- MF:C15H12Br2O2
- Chemical Name:Flucloxacillin Impurity 1
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 39
- CAS:
- MF:
- Structure:
- Chemical Name:Ticagrelor Intermediate 1 D-Tartrate
- CAS:2376278-72-5
- MF:C14H25NO10
- Structure:
- Chemical Name:2-(3,5-dicyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylic acid
- CAS:2428631-65-4
- MF:C17H15N3O3S
- Structure:
- Chemical Name:Roxadustat impurity ZZ5
- CAS:
- MF:C17H12ClNO4
- Structure:
- Chemical Name:Lenvatinib impurity LFZZ-7
- CAS:
- MF:C11H9ClN2O2
- Chemical Name:Rosuvastatin Impurity 119
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 105
- CAS:
- MF:
- Structure:
- Chemical Name:(2R,3R,4R,5S,6R)-2-(acetoxymethyl)-6-(4-chloro-3-(4-(((S)-tetrahydrofuran-3-yl)oxy)benzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate
- CAS:1620758-27-1
- MF:C31H35ClO11
- Chemical Name:Febuxostat Impurity 99
- CAS:
- MF:
- Chemical Name:Furosemide Impurity 20
- CAS:
- MF:
- Structure:
- Chemical Name:(3R,4R,5S)-ethyl 4,5-diacetamido-3-(pentan-3-yloxy)cyclohex-1- enecarboxylate
- CAS:1191921-01-3
- MF:C18H30N2O5
- Chemical Name:Ticagrelor Impurity 109
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 134
- CAS:
- MF:
- Structure:
- Chemical Name:2-Propenamide, 2-cyano-3-(3,4-dihydroxyphenyl)-N,N-diethyl-, (2E)-
- CAS:1217439-96-7
- MF:C14H16N2O3
- Structure:
- Chemical Name:Benzonitrile, 4,4'-[[2,2'-bis(hydroxymethyl)[1,1'-biphenyl]-4,4'-diyl]bis(oxy)]bis-
- CAS:2254541-79-0
- MF:C28H20N2O4
- Structure:
- Chemical Name:Benzoic acid, 3-(butylamino)-5-[(butylamino)sulfonyl]-4-phenoxy-
- CAS:28469-01-4
- MF:C21H28N2O5S
- Structure:
- Chemical Name:Acetamide, N-[9-[[2-(acetyloxy)-1-(hydroxymethyl)ethoxy]methyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-
- CAS:298197-26-9
- MF:C13 H17 N5 O6
- Chemical Name:Topiroxostat Impurity 46
- CAS:
- MF:
- Chemical Name:Topiroxostat Impurity 43
- CAS:
- MF:
- Structure:
- Chemical Name:N-(2-(1-hydroxycyclohexyl)-2-(4-methoxyphenyl)ethyl)-N-methyl formamide
- CAS:1643948-40-6
- MF:C17H25NO3
- Chemical Name:Regorafenib Impurity 40
- CAS:
- MF:
- Structure:
- Chemical Name:3-Quinolinecarboxylic acid, 1-cyclopropyl-7-fluoro-1,4-dihydro-6,8-dimethoxy-4-oxo-, ethyl ester
- CAS:2489671-14-7
- MF:C17H18FNO5
- Structure:
- Chemical Name:Bisoprolol Impurity 17
- CAS:109791-19-7
- MF:C15H23NO5
- Structure:
- Chemical Name:Furosemide Impurity 5
- CAS:518336-22-6
- MF:C12H10ClNO3
- Structure:
- Chemical Name:Lumateperone Impurity 2
- CAS:313544-32-0
- MF:C16H19N3O3
- Structure:
- Chemical Name:Pramipexole Impurity 55
- CAS:959012-83-0
- MF:C8H11NO2
- Structure:
- Chemical Name:INDEX NAME NOT YET ASSIGNED
- CAS:2438857-80-6
- MF:C27H22F2N6O5
- Chemical Name:Nicergoline Impurity 01
- CAS:
- MF:
- Chemical Name:impurity 38
- CAS:
- MF:
- Chemical Name:Aprepitant impurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:Benzonitrile, 4-[3-[(acetyloxy)methyl]-4-bromophenoxy]-
- CAS:2227126-09-0
- MF:C16H12BrNO3
- Structure:
- Chemical Name:3-Pyridineacrylonitrile, α-(m-chlorophenyl)-β-hydroxy- (8CI)
- CAS:18206-80-9
- MF:C14H9ClN2O
- Structure:
- Chemical Name:Androsta-3,16-dien-17-ol, acetate, (5α)- (9CI)
- CAS:103088-58-0
- MF:C21H30O2
- Structure:
- Chemical Name:1-Naphthalenamine, 1,2,3,4-tetrahydro-N-methyl-4-phenyl-, (1S,4S)-
- CAS:91797-61-4
- MF:C17H19N
- Structure:
- Chemical Name:2-Pyridineethanamine, N-methyl-N-nitroso-
- CAS:32635-81-7
- MF:C8H11N3O
- Chemical Name:Peramivir Impurity 45
- CAS:
- MF:
- Structure:
- Chemical Name:Pentanamide, 5-(diphenylphosphinyl)-N-ethyl-
- CAS:2512198-63-7
- MF:C19H24NO2P
- Structure:
- Chemical Name:1H-Pyrido[3',4':4,5]pyrrolo[1,2,3-de]quinoxaline-8(7H)-carboxylic acid, 2,3,6b,9,10,10a-hexahydro-, ethyl ester, (6bR,10aS)-
- CAS:313369-17-4
- MF:C16H21N3O2
- Structure:
- Chemical Name:Ergoline-8-methanol, 10-hydroxy-1,6-dimethyl-, 8-(5-bromo-3-pyridinecarboxylate), (8β)-
- CAS:57935-66-7
- MF:C23H24BrN3O3
- Structure:
- Chemical Name:2-AMino-5-(trifluoroMethoxy)phenyl Thiocyanate
- CAS:1391054-04-8
- MF:C8H5F3N2OS
- Structure:
- Chemical Name:2-(2-Ethoxyphenoxy)ethyl Methanesulfonate
- CAS:169506-15-4
- MF:C11H16O5S
- Structure:
- Chemical Name:1-(5-(benzyloxy)-2-hydroxy-3-nitrophenyl)ethanone
- CAS:861841-94-3
- MF:C15H13NO5
- Chemical Name:acetylated penicilloic acids of piperacillin
- CAS:
- MF:
- Structure:
- Chemical Name:Atorvastatin Dehydro Lactone
- CAS:442851-50-5
- MF:C33H31FN2O3
- Chemical Name:penicilloic acids of piperacillin
- CAS:
- MF:
- Structure:
- Chemical Name:BJQMFFOQQWEWAF-DGBYXFBUSA-N
- CAS:1709825-83-1
- MF:C31H41ClO8
- Structure:
- Chemical Name:3-Oxo Atorvastatin tert-Butyl Ester
- CAS:134394-98-2
- MF:C37H41FN2O5
- Structure:
- Chemical Name:(1S,2S,3R,5S)-3-(7-(((1R,2S)-2-(4-fluorophenyl)cyclopropyl)amino)-5-(propylthio)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-3-yl)-5-(2-hydroxyethoxy)cyclopentane-1,2-diol
- CAS:
- MF:C23H29FN6O4S
- Structure:
- Chemical Name:(5-Ethyl-1H-imidazol-4-yl)methanol
- CAS:38603-74-6
- MF:C6H10N2O
- Structure:
- Chemical Name:(Z)-1-(6-methylpyridin-3-yl)-2-(4-(methylsulfonyl)phenyl)ethanone oxime
- CAS:1810761-43-3
- MF:C15H16N2O3S
- Structure:
- Chemical Name:tert-butyl 2-((4R,6S)-6-(2-aminoethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate
- CAS:
- MF:C14H27NO4
- Chemical Name:Apixaban Impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:ethylidene phthalide
- CAS:61658-90-0
- MF:C10H8O2
- Structure:
- Chemical Name:6-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl) -7-methyl-7,9-dihydro-8H-purin-8-one
- CAS:1361569-18-7
- MF:C19H15FN8O
- Structure:
- Chemical Name:5-(TRIFLUOROMETHYL)-3-P-TOLYL-1H-PYRAZOLE
- CAS:219986-64-8
- MF:C11H9F3N2
- Structure:
- Chemical Name:LORATADINE IMPURITY F
- CAS:
- MF:C22H23ClN2O2
- Chemical Name:ZIDOVUDINE IMPURITY A
- CAS:
- MF:
- Structure:
- Chemical Name:Propanoic acid, 2-[[(Z)-[1-(2-amino-4-thiazolyl)-2-[[(2S,3S)-2-methyl-4-oxo-1-sulfo-3-azetidinyl]amino]-2-oxoethylidene]amino]oxy]-2-methyl-, 1-(1,1-dimethylethyl) ester
- CAS:330944-50-8
- MF:C17H25N5O8S2
- Structure:
- Chemical Name:Canagliflozin Peroxide Impurity
- CAS:2247196-28-5
- MF:C24H25FO7S
- Structure:
- Chemical Name:(αR)-α-Methyl-N-[3-[3-(trifluoromethyl)phenyl]propyl]-2-naphthalenemethanamine Hydrochloride
- CAS:2200269-28-7
- MF:C22H23ClF3N
- Structure:
- Chemical Name:2-(4-Fluorophenyl)-δ-hydroxy-5-(1-methylethyl)-β-oxo-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic Acid 1,1-Dimethylethyl Ester
- CAS:947262-20-6
- MF:C37H41FN2O5
- Chemical Name:Atorvastatin Impurity E Intermediate
- CAS:
- MF:
- Chemical Name:Ceftazidime Double Mother Nucleus Impurity
- CAS:
- MF:
- Chemical Name:Cefuroxime Sodium Trans Impurity I，(E)-Cefuroxime Sodium Impurity I
- CAS:
- MF:
- Chemical Name:Faropenem Degradation Impurity B
- CAS:
- MF:
- Chemical Name:2-chloro-1-(5-isopropoxy-5H-chromeno[2,3-b]pyridin-7-yl)propan-1-one
- CAS:
- MF:
- Structure:
- Chemical Name:Oxacillin Impurity 1
- CAS:36231-30-8
- MF:C19H19N3O6S
- Chemical Name:Brivaracetam Impurity 33
- CAS:
- MF:
- Structure:
- Chemical Name:Arformoterol Impurity 24
- CAS:477552-93-5
- MF:C19H24N2O3
- Structure:
- Chemical Name:Pregabalin Impurity 99
- CAS:949890-75-9
- MF:C16H23NO4
- Structure:
- Chemical Name:Roxatidine Impurity 9
- CAS:87327-60-4
- MF:C4H6O4
- Chemical Name:Regofenib impurity K
- CAS:
- MF:
- Chemical Name:Chlorpheniramine Impurity 4
- CAS:
- MF:
- Chemical Name:Peramivir Impurity 43
- CAS:
- MF:
- Structure:
- Chemical Name:N-(4-BROMOBUTYL)-7-(4-BROMOBUTOXY)-QUINOLINE-2(1H)-ONE
- CAS:1076199-56-8
- MF:C17H21Br2NO2
- Structure:
- Chemical Name:7-methoxy-3,4-dihydro-1-naphthalenylacetonitrile
- CAS:861960-34-1
- MF:C13H13NO
- Structure:
- Chemical Name:Ethanone, 2-chloro-1-[3-nitro-4-(phenylmethoxy)phenyl]-
- CAS:871266-45-4
- MF:C15H12ClNO4
- Structure:
- Chemical Name:Benzeneethanamine, N-[2-(3,4-dimethoxyphenyl)ethyl]-3,4-dimethoxy-
- CAS:24997-88-4
- MF:C20H27NO4
- Structure:
- Chemical Name:1H-Pyrazolo[3,4-c]pyridine-3-carboxamide, 4,5,6,7-tetrahydro-1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo-
- CAS:1642569-42-3
- MF:C20H17N5O5
- Structure:
- Chemical Name:1H-Pyrazolo[3,4-c]pyridine-3-carboxamide, 4,5,6,7-tetrahydro-1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo-
- CAS:1642569-42-3
- MF:C20H17N5O5
- Chemical Name:Avatrombopag Impurity 23
- CAS:
- MF:
- Chemical Name:Avatrombopag Impurity 34
- CAS:
- MF:
- Chemical Name:Cisatracurium besylate impurity11
- CAS:
- MF:
- Structure:
- Chemical Name:Acetamide, N-?[4-?[5-?(acetylamino)?-?2-?hydroxyphenoxy]?phenyl]?-
- CAS:2575516-61-7
- MF:C16H16N2O4